123326645 has 16 divisors (see below), whose sum is σ = 161626752. Its totient is φ = 89785920.

The previous prime is 123326641. The next prime is 123326657. The reversal of 123326645 is 546623321.

It is not a de Polignac number, because 123326645 - 2² = 123326641 is a prime.

It is a super-2 number, since 2×123326645² = 30418922733912050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123326641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8747 + ... + 17976.

It is an arithmetic number, because the mean of its divisors is an integer number (10101672).

Almost surely, 2^123326645 is an apocalyptic number.

It is an amenable number.

123326645 is a deficient number, since it is larger than the sum of its proper divisors (38300107).

123326645 is a wasteful number, since it uses less digits than its factorization.

123326645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26812.

The product of its digits is 25920, while the sum is 32.

The square root of 123326645 is about 11105.2530362887. The cubic root of 123326645 is about 497.7588293173.

Adding to 123326645 its reverse (546623321), we get a palindrome (669949966).

The spelling of 123326645 in words is "one hundred twenty-three million, three hundred twenty-six thousand, six hundred forty-five".